Coach latch



.J. B. FLYNN 1,756,117

' COACH LATCH Filed Jan. 14. 1928 IN VEN TOR.

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Patented Apr. 29, 1930 UNITED STATES PATENT OFFICE JOHN B. FLYNN, OIDETROIT, MICHIGAN, ASSIGNOR T TERNSTEDT MANUFACTURING COMPANY, OFDETROIT, MICHIGAN,

A CORPORATION OF MICHIGAN COACH LATCH Application filed January 14,1928. Serial No. 246,672.

This invention relates to coach latches, and

' has for its object a simple latch construction in which provision ismade for continuously lubricating the sliding bolt, for the purpose ofmaking the retraction easy and preventing squeaking and creaking of thebolt.

Another feature is that the sliding bolt is so constructed that it canbe used either with a remote control inside actuator or with a directinside actuator.

Fig. 1 is a view of the rear of the latch in elevation.

Fig. 2 is a section taken on the line 2-2 of Fig. 3 is a section takenon the line 33 of Fig. 2.

a designates the front plate; I) the face plate. ranged to cover theoutside rollback abutment d, and the inside rollback abutment e. fdesignates a rearward extension or remote control connection. This isguided through the portion h of the frame between the struck out lugs zand jof the front plate. is designates the usual spring; m the outsiderollback. The sliding bolt is provided with a bolt head n.

A brass fixturep can be secured on the back of the face plate I; bymeans of screws. This has a dual function; it forms'an additional guidefor the sliding bolt head, more reliable and certain than thethin walledopening through the face plate. Additionally it serves as a wickcontainer. The wick is designated o and is saturated with lubricant.This, of course, will stay in the container indefinitely and serve tokeep the lock bolt lubricated. Furthermore, an oil hole can be providedthrough the face plate I) for soaking the wick from time to time withadditional oil. This hole is designated q. 9" designates a boss in theback plate. This is an anti-rattler adapted to bear against a lever (notshown), which can function against the inside retrac tor abutment e.

The latch is an interchangeable remote control or direct conirol latch.Inasmuch as I am not claiming these several retracting elements incombination with the latch, butonly a latch capable of use in connectionwith these several elements I find it unnecessary to show 0 is a latchframe or back plate ar-' these common forms of retractors, as it will beevident to anyone skilled in the art that they may be easily applied tothe latch structure that is built up to take them.

What I claim is:

1. In a coach latch, the combination of a casing, a sliding bolt andother moving parts, and a reservoir secured to the casin and adapted toslidably engage the longitudinally guided face of said bolt andcontaining a lubricant to lubricate some of the moving parts.

2. A coach latch, having in combination, a latch casing comprising, afront plate and a face plate, a sliding bolt guided to pass through theface plate and slide on the back of the front plate, alubricatingreservoir removably secured on the back of the face plate and containinga wick to provide lubricant to the bolt head.

3. A coach latch, having in combination a latch casing comprising, afront plate and a face plate, a sliding bolt guided to pass through theface plate and slide on the back of the front plate, a lubricatingfixture removably secured to the back of the face plate and slidablyengaging the bolt whereby the said fixture serves both as a bolt guideand a lubricant reservoir.

4. A coach latch, having in combination a latch casing comprising, afront plate and a face plate, a sliding bolt guided to pass through theface plate and slide on the back of the front plate, a lubricant storagefixture secured on the back of the face plate and serving as a guide forthe bolt and containing a Well for continuously providing lubricant tothe lock head, said face plate being provided with an oil introducingperforation leading into the said well.

5. A coach latch comprising, a housing, a bolt slidable therein, saidhousing having a face plate and a front plate, and a fixture removablysecured to the back of the face plate and slidably engaging the bolt andservin to guide and continuously lubricate the said olt as it passesthrough the face plate.

In testimony whereof I affix my signature.

I JOHN B. FLYN N.

